I think Jesse's dad makes a very valid point.....
people sometimes DO get over-zealous in their speculations about various crimes & I think it can be very hurtful when they start tracking down all sorts of friends &/or relatives of POI.
In this day & age of the internet & people writing all sorts of personal messages on social networks, they never imagine that their words may some day be held under a microscope & analyzed by complete strangers.
I suppose that's as good a reason as any to NOT post personal info, private messages or photos in public... you just never know when you might prefer to have privacy. Once it's out there in cyberland.... it can be out there forever & you have no control over it anymore.
I think Casey's friends & family members are also victim's of Casey's lies & manipulation & whether they try to defend her or throw her to the wolves.... it's a no win situation for them. They've been scarred. For life.